CN219587893U - Double-rod-outlet cylinder - Google Patents

Abstract

The utility model relates to the technical field of cylinder structures, in particular to a double-rod-outlet cylinder which comprises a middle block, wherein the front end of the middle block is communicated with a mounting type electromagnetic valve, two sides of the middle block are respectively and fixedly connected with a cylinder body, one ends of the cylinder bodies, which are far away from the middle block, are respectively and fixedly connected with end covers, pistons are arranged in the cylinder bodies, piston guide sleeves and piston dynamic seals are respectively sleeved outside the pistons, the piston guide sleeves are positioned on one side of the piston dynamic seals, piston rod guide sleeves and piston rod dynamic seals are respectively embedded in the inner walls of the end covers, the piston rod guide sleeves are positioned on one side of the piston rod dynamic seals, the middle part of the end covers penetrates through a piston rod, which is fixedly connected with the pistons, and the improved cylinder adopts the double-rod-outlet cylinder, so that the execution actions of simultaneous pushing or simultaneous pulling of the piston rods on the left side and the right side can be realized.

Description

Double-rod-outlet cylinder

Technical Field

The utility model relates to the technical field of cylinder structures, in particular to a double-rod cylinder.

Background

A cylindrical metal member guiding the piston to perform a linear reciprocating motion in the cylinder, the air converting thermal energy into mechanical energy by expansion in the engine cylinder; the gas is compressed by a piston in a compressor cylinder to increase pressure, and the housing of a turbine, rotary piston engine, or the like is also commonly referred to as a "cylinder"; application area of the cylinder: printing, semiconductor, automated control, robotics, etc.

The prior patent (publication number: CN 211174857U) discloses a double-rod air cylinder, which comprises a cylinder barrel, a piston rod, a front cover, a rear cover and a piston, wherein the front cover and the rear cover are respectively covered at two ends of the cylinder barrel, the piston is sleeved in the middle of the piston rod, an air cavity is arranged in the cylinder barrel, two ends of the piston rod respectively penetrate through the front cover and the rear cover, two ends of the piston rod respectively are in sliding connection with the front cover and the rear cover, the piston is arranged in the air cavity and in sliding connection with the inner wall of the cylinder barrel, a working opening A communicated with the air cavity is formed in the front cover, a working opening B communicated with the air cavity is formed in the rear cover, a plurality of annular grooves are formed in the piston rod, two buffer heads are sleeved on the piston rod, and the two buffer heads are respectively arranged at two sides of the piston and are respectively in riveting connection with the annular grooves. The utility model has the advantages of simple structure, convenient use and stable operation. The inventors found that the following problems exist in the prior art in the process of implementing the present utility model: when compressed air is introduced into the left cavity of the piston of the air cylinder, the piston moves to the right, the left piston rod retracts, and the right piston rod pushes outwards; on the contrary, when compressed air is introduced into the right side cavity of the piston of the cylinder, the piston moves leftwards, the right side piston rod is retracted, and the left side piston rod is pushed outwards. However, in many applications, the piston rods on the left and right sides are often required to push out or pull back simultaneously, so that the existing dual-rod cylinder cannot meet the requirements.

Disclosure of Invention

The utility model aims to provide a double-rod air cylinder to solve the problems in the prior art. In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a two pole cylinders that go out, includes the intermediate block, the front end intercommunication of intermediate block has the dress formula solenoid valve, the both sides of intermediate block are fixedly connected with cylinder block respectively, the equal fixedly connected with end cover of one end of intermediate block is kept away from to the cylinder block, the inside of cylinder block is equipped with the piston, piston uide bushing and piston dynamic seal have been cup jointed respectively to the outside of piston, and the piston uide bushing is located one side of piston dynamic seal, the inner wall of end cover has embedded piston rod uide bushing and piston rod dynamic seal respectively, and the piston rod uide bushing is located one side of piston rod dynamic seal, the middle part of end cover runs through in one end and piston fixed connection's piston rod.

Further preferably, the cylinder block is symmetrically distributed about the central axis of the intermediate block.

Further preferably, the central axis of the end cover coincides with the central axis of the cylinder block.

Further preferably, the piston guide sleeve and the piston dynamic seal are tightly attached to the inner wall of the cylinder body.

Further preferably, the piston rod guide sleeve and the piston rod dynamic seal are tightly attached to the outer wall of the piston rod.

Further preferably, one end of the piston rod is inserted into the piston.

Compared with the prior art, the utility model has the beneficial effects that:

in the utility model, the execution action of pushing out or pulling back simultaneously of the piston rods at the left side and the right side can be realized, and the compressed air flow passage holes are arranged in the mounting type electromagnetic valve, the end cover, the cylinder body and the middle block, so that the device has compact structure and convenient maintenance; the piston rod guide sleeve and the piston guide sleeve have stable actions of the piston rod and the piston, and the piston rod dynamic seal and the piston dynamic seal have long service lives; the double-rod cylinder structure consists of a middle block, a mounting type electromagnetic valve, piston rods on two sides, an end cover, a piston rod guide sleeve, a piston rod dynamic seal, a cylinder body, a piston guide sleeve and a piston dynamic seal; the compressed air circulation and control loop consists of a sticking electromagnetic valve, an end cover, a cylinder body, a runner hole arranged on the middle block and the like.

Drawings

FIG. 1 is a schematic diagram of the front elevational view in full section of the present utility model;

FIG. 2 is a schematic top view of the present utility model in full section;

fig. 3 is a schematic side view of the present utility model.

In the figure: 1. a piston rod; 2. an end cap; 3. a piston rod guide sleeve; 4. a piston rod is dynamically sealed; 5. a cylinder block; 6. a piston; 7. a piston guide sleeve; 8. piston dynamic sealing; 9. a middle block; 10. a sticking electromagnetic valve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present utility model based on the embodiments of the present utility model.

Referring to fig. 1 to 3, the present utility model provides a technical solution: the utility model provides a two pole cylinders, including intermediate block 9, intermediate block 9's front end intercommunication has paste dress formula solenoid valve 10, intermediate block 9's both sides are fixedly connected with cylinder block 5 respectively, cylinder block 5 is kept away from intermediate block 9's the equal fixedly connected with end cover 2 of one end, cylinder block 5's inside is equipped with piston 6, piston 6's outside has cup jointed piston uide bushing 7 and piston dynamic seal 8 respectively, and piston uide bushing 7 is located piston dynamic seal 8's one side, end cover 2's inner wall has piston rod uide bushing 3 and piston rod dynamic seal 4 respectively, and piston rod uide bushing 3 is located piston rod dynamic seal 4's one side, the middle part of end cover 2 runs through in one end and piston 6 fixed connection's piston rod 1.

In the present embodiment, as shown in fig. 1 and 2, the cylinder block 5 is symmetrically distributed about the central axis of the intermediate block 9.

In this embodiment, as shown in fig. 1 and 2, the central axis of the end cap 2 coincides with the central axis of the cylinder block 5.

In this embodiment, as shown in fig. 1 and 2, the piston guide 7 and the piston dynamic seal 8 are closely attached to the inner wall of the cylinder block 5.

In this embodiment, as shown in fig. 1 and 2, the piston rod guide sleeve 3 and the piston rod dynamic seal 4 are tightly attached to the outer wall of the piston rod 1.

In this embodiment, as shown in fig. 1 and 2, an end of the piston rod 1 is inserted into the piston 6.

The application method and the advantages of the utility model are as follows: the double-rod-outlet cylinder is used in the following working process:

as shown in fig. 1, 2 and 3, when the mounting electromagnetic valve 10 first controls the port B to be in an empty state and compressed air is filled from the port a, the compressed air enters rod cavities on the outer sides of the pistons 6 in the cylinder blocks 5 on the left and right sides through the middle block 9, the cylinder blocks 5 and the runners Kong Chong arranged on the end covers 2, and pushes the pistons 6 on the left and right sides to move towards the middle block 9, so that the piston rods 1 on the left and right sides are pulled back simultaneously. On the contrary, when the mounting electromagnetic valve 10 controls the opening A to be in an emptying state and compressed air is filled from the opening B, the compressed air enters the rodless cavity on the inner side of the piston 6 in the cylinder body 5 on the left side and the right side through the runner Kong Chong arranged on the middle block 9, the pistons 6 on the left side and the right side are pushed to move in the outer direction, and then the piston rods 1 on the left side and the right side are pushed to extend outwards simultaneously.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a two pole cylinders, includes intermediate piece (9), its characterized in that: the front end intercommunication of intermediate block (9) has surface mounted solenoid valve (10), the both sides of intermediate block (9) are fixedly connected with cylinder block (5) respectively, the equal fixedly connected with end cover (2) of one end of intermediate block (9) is kept away from to cylinder block (5), the inside of cylinder block (5) is equipped with piston (6), piston uide bushing (7) and piston dynamic seal (8) have been cup jointed respectively to the outside of piston (6), and piston uide bushing (7) are located one side of piston dynamic seal (8), the inner wall of end cover (2) has inlayed piston rod uide bushing (3) and piston rod dynamic seal (4) respectively, and piston rod uide bushing (3) are located one side of piston rod dynamic seal (4), the middle part of end cover (2) runs through have one end and piston (6) fixedly connected with piston rod (1).

2. A dual rod out cylinder according to claim 1, wherein: the cylinder block (5) is symmetrically distributed about the central axis of the intermediate block (9).

3. A dual rod out cylinder according to claim 1, wherein: the central axis of the end cover (2) is consistent with the central axis of the cylinder body (5).

4. A dual rod out cylinder according to claim 1, wherein: the piston guide sleeve (7) and the piston dynamic seal (8) are tightly attached to the inner wall of the cylinder body (5).

5. A dual rod out cylinder according to claim 1, wherein: the piston rod guide sleeve (3) and the piston rod dynamic seal (4) are tightly attached to the outer wall of the piston rod (1).

6. A dual rod out cylinder according to claim 1, wherein: one end of the piston rod (1) is inserted into the piston (6).